mirror of
https://github.com/gravitl/netmaker.git
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87 lines
2.5 KiB
Go
87 lines
2.5 KiB
Go
package local
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import (
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"fmt"
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"github.com/c-robinson/iplib"
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"github.com/gravitl/netmaker/logger"
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"github.com/gravitl/netmaker/netclient/ncutils"
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"net"
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"regexp"
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"strings"
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)
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// GetDefaultRoute - Gets the default route (ip and interface) on a mac machine
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func GetDefaultRoute() (string, string, error) {
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var ipaddr string
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var iface string
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var err error
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var outLine string
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output, err := ncutils.RunCmd("netstat -nr", false)
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for _, line := range strings.Split(strings.TrimSuffix(output, "\n"), "\n") {
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if strings.Contains(line, "default") {
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outLine = line
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break
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}
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}
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space := regexp.MustCompile(`\s+`)
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outFormatted := space.ReplaceAllString(outLine, " ")
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if err != nil {
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return ipaddr, iface, err
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}
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outputSlice := strings.Split(string(outFormatted), " ")
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if !strings.Contains(outputSlice[0], "default") {
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return ipaddr, iface, fmt.Errorf("could not find default gateway")
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}
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ipaddr = outputSlice[1]
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if err = ncutils.CheckIPAddress(ipaddr); err != nil {
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return ipaddr, iface, err
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}
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iface = outputSlice[3]
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return ipaddr, iface, err
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}
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// route -n add -net 10.0.0.0/8 192.168.0.254
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// networksetup -setadditionalroutes Ethernet 192.168.1.0 255.255.255.0 10.0.0.2 persistent
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func setRoute(iface string, addr *net.IPNet, address string) error {
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var err error
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var out string
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var inetx = "inet"
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if strings.Contains(addr.IP.String(), ":") {
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inetx = "inet6"
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}
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out, err = ncutils.RunCmd("route -n get -"+inetx+" "+addr.IP.String(), false)
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if err != nil {
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return err
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}
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if !(strings.Contains(out, iface)) {
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_, err = ncutils.RunCmd("route -q -n add -"+inetx+" "+addr.String()+" -interface "+iface, false)
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}
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return err
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}
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// SetExplicitRoute - sets route via explicit ip address
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func SetExplicitRoute(iface string, destination *net.IPNet, gateway string) error {
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return setRoute(iface, destination, gateway)
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}
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func deleteRoute(iface string, addr *net.IPNet, address string) error {
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var err error
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_, err = ncutils.RunCmd("route -q -n delete "+addr.String(), false)
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return err
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}
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func setCidr(iface, address string, addr *net.IPNet) {
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if iplib.Version(addr.IP) == 4 {
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ncutils.RunCmd("route -q -n add -net "+addr.String()+" "+address, false)
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} else if iplib.Version(addr.IP) == 6 {
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ncutils.RunCmd("route -A inet6 -q -n add -net "+addr.String()+" "+address, false)
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} else {
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logger.Log(1, "could not parse address: "+addr.String())
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}
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}
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func removeCidr(iface string, addr *net.IPNet, address string) {
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ncutils.RunCmd("route -q -n delete "+addr.String()+" -interface "+iface, false)
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}
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